New simple 555 regulated symmetrical triangular wave generator

LED light-emitting diode quality guarantees absolute price

Filter 18.432M

As shown, this is a deformed multivibrator with constant current charging and constant current discharge. The constant current source I1 is controlled by VT1. When VT1 is turned on, VT2 is turned on, I1 charges C2, when C2 voltage reaches the threshold level 2/3Vdd, 555 is reset, 3 feet are low level, VT1 is cut off, I1=0., C2 passes VT3 RP1, D4 discharge, when placed to the trigger level 1/3Vdd, 555 is set again, output high level, start the second cycle of charging.